<meta charset="UTF-8">
<input id="t" placeholder="备忘标题"/>
<br/><br/>
<textarea rows="12" cols="88"
          id="c" placeholder="备忘内容">
</textarea>
<br/><br/>
<button onclick="save()">保存</button>
<script>
  function save(){
  var request=new XMLHttpRequest();
  request.open("get","/add_beiwang?title="+t.value+"&content="+c.value);
  request.send();
  request.onreadystatechange=function(){
  if(request.readyState==4&&
  request.status==200){
  alert("新增成功!");
  }
 }
}
</script>